Microalbumin Creatinine Ratio Test

The microalbumin creatinine ratio (ACR) test is a urine test used to measure the levels of microalbumin and creatinine in the urine. Microalbumin is a small protein that is normally present in the blood, but when the kidneys are damaged, it can leak into the urine in small amounts. Creatinine is a waste product produced by the muscles and is filtered out of the blood by the kidneys.

The ACR test is commonly used as a screening test for kidney damage in people with diabetes and high blood pressure, as these conditions can cause damage to the kidneys over time. It is also used to monitor kidney function in people with known kidney disease.

The ACR test is performed by collecting a urine sample and measuring the levels of microalbumin and creatinine in the urine. The ACR is then calculated by dividing the microalbumin level by the creatinine level. A high ACR indicates that the kidneys may be damaged and are not functioning properly.

The ACR test is a simple and non-invasive test that can be performed in a doctor's office or laboratory. It is an important tool in the early detection and management of kidney disease, as early intervention can slow or even prevent the progression of kidney damage.